Re: Basic advice
Bill is probably more correct then you think. The engine pan and valve galley are full of gunk assuming 40 years of sitting with most likely non detergent oil. Possibly stuck rings,even though it runs ok. If you do clean the galley don't get gunk down the gravity fed bearing feeds. Also I'd be Leary of using detergent oil. Sometimes you get away with it, and sometimes, like the engine I'm rebuilding now, you don't.
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